Service manual
Table Of Contents
- COVER
- CAUTION
- Safety precautions
- CONTENTS
- 1-1 Specifications
- 1-2 Handling Precautions
- 1-3 Installation
- 1-4 Maintenance mode
- 1-5 Trouble Shooting
- 1-5-1 Paper misfeed detection
- 1-5-2 Self-diagnosis
- 1-5-3 Image formation problems
- (1) No image appears (entirely white).
- (2) No image appears (entirely black).
- (3) Image is too light.
- (4) Background is visible.
- (5) A white line appears longitudinally.
- (6) A black line appears longitudinally.
- (7) A black line appears laterally.
- (8) One side of the copy image is darker than the other.
- (9) Black dots appear on the image.
- (10)Image is blurred.
- (11)The leading edge of the image is consistently misaligned with the original.
- (12)The leading edge of the image is sporadically misaligned with the original.
- (13)Paper creases.
- (14)Offset occurs.
- (15)Image is partly missing.
- (16)Fixing is poor.
- (17)Image is out of focus.
- (18)Image center does not align with the original center.
- (19)Image is not square.
- (20)Image contrast is low (carrier scattering).
- 1-5-4 Electrical problems
- (1) The machine does not operate when the main switch is turned on
- (2) The drive motor does not operate when (C200)
- (3) The scanner motor does not operate.
- (4) The toner feed motor does not operate
- (5) Cooling fan motor 1 does not operate
- (6) Cooling fan motor 2 does not operate
- (7) Cooling fan motor 3 does not operate
- (8) The drawer motor does not operate
- (9) The registration clutch does not operate
- (10) The upper paper feed clutch does not operate
- (11) The lower paper clutch does not operate
- (12) Paper feed clutch (ST) 1 does not operate
- (13) Paper feed clutch (ST) 2 does not operate
- (14) The bypass paper feed clutch does not operate
- (15) The cleaning lamp does not turn on
- (16) The exposure lamp does not turn on
- (17) The exposure lamp does not turn off
- (18) The fixing heater does not turn on (C610)
- (19) The fixing heater does not turn off
- (20) Main charging is not performed
- (21) Transfer charging is not performed
- (22) No developing bias is output
- (23) The original size is not detected
- (24) The original size is not detected correctly
- (25) The message requesting papaer to be loaded is shown when paper is present
- (26) The message requesting papaer to be loaded is shown when paper is present in the upper drawer
- (27) The message requesting papaer to be loaded is shown when paper is present in the lower drawer
- (28) The size of paper in the upper drawer is not displayed correctly
- (28) The size of paper in the upper drawer is not displayed correctly
- (29) The size of paper in the lower drawer is not displayed correctly
- (30) The printing width of the paper on the bypass is not detected correctly
- (31) A paper jam in the paper feed, paper conveying or fixing section is indicated when the main switch is turned on
- (32) The message requesting covers to be closed is displayed when the front cover, paper conveying unit and lower drawer left
- (33) Others
- 1-5-5 Mechanical problems
- 1-6 Assembly and disassembly
- 1-6-1 Precautions for assembly and disassembly
- 1-6-2 Paper feed section
- (1) Detaching and refitting the upper and lower paper feed pulleys
- (2) Detaching and refitting the bypass paper feed pulley
- (3) Detaching and refitting the left registration cleaner assembly
- (4) Detaching and refitting the right registration cleaner assembly
- (5) Detaching and refitting the bypass paper width switch
- (6) Adjustment after roller and clutch replacement
- 1-6-3 Optical section
- (1) Detaching and refitting the exposure lamp
- (2) Detaching and refitting the scanner wires
- (3) Detaching and refitting the laser scanner unit
- (4) Adjusting the skew and vertical shifting of the laser scanner unit
- (5) Detaching and refitting the ISU (reference)
- (6) Adjusting the position of the ISU (reference)
- (7) Adjusting the longitudinal squareness (reference)
- (8) Adjusting magnification of the scanner in the main scanning direction
- (9) Adjusting magnification of the scanner in the auxiliary scanning direction
- (10) Adjusting the scanner leading edge registration
- (11)Adjusting the scanner center line
- (12) Adjusting the margins for scanning an original on the contact glass
- 1-6-4 Main charging section
- 1-6-5 Drum section
- 1-6-6 Developing section
- 1-6-7 Transfer section
- 1-6-8 Cleaning section
- 1-6-9 Fixing section
- 1-7 Requirements on PCB Replacement
- 2-1 Electrical Parts Layout
- 2-2 Electrical parts layout
- 2-3 Operation of the PCBs
- 2-4 Appendixes

2AV/X
1-3-19
1-3
Clearing copy counts
1. Select “Management Setting” (“COPY MGMT
SETTING”) and press the enter key.
2. Select “Count delete” (“COUNTS CLEAR”)
and press the enter key.
3. Select “Yes” or “No” and press the enter key.
Viewing copy counts
1. Select “Reference” and press the enter key.
2. Select “All Department total” (“TOTAL: ALL ID-
CODES”) and press the enter key.
3. View copy counts using the cursor up/down
keys.
Print management list
1. Select “Printer management list” (“PRINT
MANAGEMENT LIST”) and press the enter
key.
If A4/11" × 8
1
/
2
" paper is present, the list is
automatically printed out. Otherwise, select
the paper source and press the start key.
Turning department management on/off
1. Select “Management on/off” (“COPY MANAGE-
MENT ON/OFF”) and press the enter key.
2. Select “On” or “Off” and press the enter key.
Turning printer department management on/off
Note: This setting item will not be displayed if the
optional printer board is not installed.
Turning printer error report function on/off
Note: This setting item will not be displayed if the
optional printer board is not installed.
(5) Setting department management items
Registering a new department code
Sets a department code and the limit of the
number of copies for that department.
1. Select “Management Setting” (“COPY MGMT
SETTING”) and press the enter key.
2. Select “Register” and press the enter key.
3. Enter a department code* using the numeric
keys and press the enter key.
* 4 digits for metric specifications and 7 digits
for inch specifications.
4. Select “Copy limit”. Enter the number of copies
limit using the numeric keys and press the
enter key.
Deleting a department code
1. Select “Management Setting” (“COPY MGMT
SETTING”) and press the enter key.
2. Select “Code delete” and press the enter key.
3. Select the department code to be deleted and
press the enter key.
4. Select “Yes” or “No” and press the enter key.
Altering the copy limit
1. Select “Management Setting” (“COPY MGMT
SETTING”) and press the enter key.
2. Select “Copy limit correction” and press the
enter key.
3. Select the department code to be altered and
press the enter key.
4. Enter the new number of copies limit using the
numeric keys.
(6) Copy default
Exposure mode
Selects the image mode at power-on.
1. Select “Exposure mode” and press the enter
key.
2. Select the exposure mode and press the enter
key.
Exposure mode: Auto mode/Mixed mode/Photo
mode/Text mode
Exposure steps
Sets the number of exposure steps for the manual
exposure mode.
1. Select “Exposure steps” and press the enter
key.
2. Select “5 steps” or “9 steps” and press the
enter key.
Auto exposure adjustment
Adjusts the exposure for the auto exposure mode.
1. Select “Auto exposure adjustment” (“AUTO
EXP. LEVEL ADJUST”) and press the enter
key.
2. Select the setting and press the enter key.
Setting range: 1 to 7
Mixed original density
Adjusts the exposure to be used when text and
photo original is selected for the image mode.
1. Select “Mixed original density set” and press
the enter key.
2. Select the setting and press the enter key.
Setting range: 1 to 7










